why the desirable efficiency for a motor is 60%, but in case of transformer, it is above 90%?
1 4094how to calculate Amp, 2 different Amp of batteries? Example: No. of Batteries = 2 Battery voltage = 12V 1st Battery rating = 17AH 2nd battery rating = 30AH between parallel connection then output volt 12v Amp?
2 5364For 6600/433 distribution transformer we apply secondary side 433 volts how much voltage in primary side.
2 5126whenewher three phase supply is given to induction motors revolving/rotating field is created & rotor rotates.When the three phase supply is given to three phase transformer then revolving,/rotating field is created or not? if not why?
1 3442how could we findout the lightning arrester failed or not in live circuit? Is there any instrument to measure the high voltage at the time of sky lighting?
1 4050Post New Electrical Engineering Questions
How does the slip regulator works as a startor
please give me all the Alarm .Trip ,Safety Relays & Conditions of Diesel-generators mail me on ashokbabunhce@gmail.com
What is the capacitance values of 132,220,400 & 765 kV current transformer
Mention what are the different colors on wires indicates?
Can I use star delta connected induction motor for dual supply voltage?
how to setting voltage RTCC panel
Where should the lighting arrestor be placed in distribution lines?
State the points to be considered for selecting a particular type wiring.
plz explain the auot-reclosing circuit in electrical engineeing
What are the types of class b amplifier?
please explain how to do 'pole drop test' on generator?
What are test signals and their significance?
Hello sir, pls send me hpcl technical test papers .i am. Appearing for the exam.
I want to know all basics of electrical engineering
how to choose cable size with respect to load? how to convert cable size in mm2 to sq.mm?